论文标题
通过截短的垂直联合学习,低延迟合作频谱传感
Low-Latency Cooperative Spectrum Sensing via Truncated Vertical Federated Learning
论文作者
论文摘要
近年来,无线数据传输需求的指数增加增加了准确的光谱传感方法的紧迫性,以提高频谱效率。通过使用单个二级用户(SU)的测量结果,传统频谱传感方法的不可靠性激发了对合作频谱传感(CSS)的研究。在这项工作中,我们提出了一个垂直联合学习(VFL)框架,以利用多个SU的分布式功能,而不会损害数据隐私。但是,VFL的重复培训过程面临着高通信延迟的问题。为了加快培训过程,我们提出了一种截断的垂直联合学习(T-VFL)算法,在该算法中,通过将标准VFL算法与频道意识的用户调度策略集成在一起,可以大大降低培训潜伏期。 T-VFL的收敛性能通过数学分析提供,并通过仿真结果证明。此外,为了确保T-VFL算法的融合性能,我们对VFL框架下使用的神经体系结构进行了三个设计规则,该规则通过模拟证明了其有效性。
In recent years, the exponential increase in the demand of wireless data transmission rises the urgency for accurate spectrum sensing approaches to improve spectrum efficiency. The unreliability of conventional spectrum sensing methods by using measurements from a single secondary user (SU) has motivated research on cooperative spectrum sensing (CSS). In this work, we propose a vertical federated learning (VFL) framework to exploit the distributed features across multiple SUs without compromising data privacy. However, the repetitive training process in VFL faces the issue of high communication latency. To accelerate the training process, we propose a truncated vertical federated learning (T-VFL) algorithm, where the training latency is highly reduced by integrating the standard VFL algorithm with a channel-aware user scheduling policy. The convergence performance of T-VFL is provided via mathematical analysis and justified by simulation results. Moreover, to guarantee the convergence performance of the T-VFL algorithm, we conclude three design rules on the neural architectures used under the VFL framework, whose effectiveness is proved through simulations.